BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 21, Problem 13SA
Summary Introduction
Introduction:
A seed is produced after fertilization of male and female gamete in the plants. In general mature ovule is called a seed. A seed has the capability to develop in the complete plant. Only the higher plants such as gymnosperms and
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A fruit is(A) a mature ovary.(B) a mature ovule.(C) a seed plus its integuments.(D) an enlarged embryo sac.
Which of the following is false?
A. Oak trees have flowers
B. Gymnosperms make pollen
C. Ferns have seeds
D. Corn plants have rubisco
A seed is a(n)_______ . a. female gametophyte c. mature pollen tube b. mature ovule d. immature microspore
Chapter 21 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 21 - The first plants were_________. a. ferns c....Ch. 21 - Which of the following statements is false? a....Ch. 21 - In bryophytes, eggs are fertilized in a chamber on...Ch. 21 - Prob. 4SACh. 21 - Coal consists primarily of compressed remains of...Ch. 21 - Prob. 6SACh. 21 - Prob. 7SACh. 21 - Prob. 8SACh. 21 - Only angiosperms produce_______. a. pollen c....Ch. 21 - The _______do not have xylem or phloem. a. mosses...
Ch. 21 - Prob. 11SACh. 21 - Prob. 12SACh. 21 - Prob. 13SACh. 21 - Prob. 14SACh. 21 - Prob. 15SACh. 21 - Early botanists admired ferns but found their life...Ch. 21 - In animals, meiosis of germ cells produces...Ch. 21 - In most plants the largest, longest-lived body is...Ch. 21 - Consider a cherry pit, which is a seed with a...Ch. 21 - Suppose you wanted to make a science fiction film...
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- Which of the following statements is false? a. Ferns produce seeds inside sori. b. Conifers do not produce fruits. c. Both gymnosperms and angiosperms produce pollen. d. Only angiosperms produce flowersarrow_forwardCorn develops from a seedling with a single cotyledon, displays parallel veins on its leaves, and produces monosulcate pollen. It is most likely: a. a gymnosperm b. a monocot c. a eudicot d. a basal angiospermarrow_forwardIn a plant’s male reproductive organs, development of pollen takes place in a structure known as the ________. a. stamen b. microsporangium c. anther d. tapetumarrow_forward
- A seed containsa. a seed coat. b. cotyledon(s).c. an embryo. d. stored food.e. All of these are correct.arrow_forwardAbundant and powdery pollen produced by small, indistinct flowers is probably transported by: a. bees and butterflies b. flies c. birds d. windarrow_forwardCallase enzyme which dissolves callose of pollen tetrads to separate four pollens is provided by: (a) pollens (b) tapetum (c) middle layers (d) endothecium.arrow_forward
- The trait of male sterility in corn was used to a. avoid self-pollination b. be susceptible to a fungus c. make harvesting easier d. prevent rotting of ears e. produce taller plantsarrow_forwardThe transfer of pollen grains from anther to stigma is (a) fertilization(b) double fertilization (c) pollination (d) germination (e) apomixisarrow_forwardKnowledge of photoperiodism can be helpful for (a) Laying out orchards in a particular area (b) Flower growers to regulate flowering as per demand (c) Farmers to shorten the period between germination and flowering a.a only b.b only c.a and b d.a and carrow_forward
- A seedling germinating under a stone grows at an angle away from the stone and upward. This response to touch is called ________. a. gravitropism b. thigmonasty c. thigmotropism d. skototropismarrow_forwardThe integuments of an ovule will develop into the a. embryo. b. endosperm. c. fruit. d. seed coat.arrow_forwardEthylene promotes A. production of female flowers B. fruit ripening C. promotion of abscission of leaves, fruits, and flowers D. production of ABA E. A, B, and C F. B, C, and Darrow_forward
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